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Code Issues Releases Activity

h264: Add Intra and Constrained Baseline profiles to avctx.profile

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This commit is contained in:
Janne Grunau 2011-01-28 22:15:47 +01:00
parent e86e858111
commit fe9a3fbe42
5 changed files with 56 additions and 15 deletions
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9
libavcodec/avcodec.h
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@ -2260,13 +2260,20 @@ typedef struct AVCodecContext {
#define FF_PROFILE_DTS_HD_HRA 50
#define FF_PROFILE_DTS_HD_MA 60
#define FF_PROFILE_H264_CONSTRAINED (1<<9) // 8+1; constraint_set1_flag
#define FF_PROFILE_H264_INTRA (1<<11) // 8+3; constraint_set3_flag
#define FF_PROFILE_H264_BASELINE 66
#define FF_PROFILE_H264_CONSTRAINED_BASELINE (66|FF_PROFILE_H264_CONSTRAINED)
#define FF_PROFILE_H264_MAIN 77
#define FF_PROFILE_H264_EXTENDED 88
#define FF_PROFILE_H264_HIGH 100
#define FF_PROFILE_H264_HIGH_10 110
#define FF_PROFILE_H264_HIGH_10_INTRA (110|FF_PROFILE_H264_INTRA)
#define FF_PROFILE_H264_HIGH_422 122
#define FF_PROFILE_H264_HIGH_444 244
#define FF_PROFILE_H264_HIGH_422_INTRA (122|FF_PROFILE_H264_INTRA)
#define FF_PROFILE_H264_HIGH_444_PREDICTIVE 244
#define FF_PROFILE_H264_HIGH_444_INTRA (244|FF_PROFILE_H264_INTRA)
#define FF_PROFILE_H264_CAVLC_444 44
/**

29
libavcodec/h264.c
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@ -1677,6 +1677,33 @@ static void clone_slice(H264Context *dst, H264Context *src)
memcpy(dst->dequant8_coeff, src->dequant8_coeff, sizeof(src->dequant8_coeff));
}
/**
* computes profile from profile_idc and constraint_set?_flags
*
* @param sps SPS
*
* @return profile as defined by FF_PROFILE_H264_*
*/
int ff_h264_get_profile(SPS *sps)
{
int profile = sps->profile_idc;
switch(sps->profile_idc) {
case FF_PROFILE_H264_BASELINE:
// constraint_set1_flag set to 1
profile |= (sps->constraint_set_flags & 1<<1) ? FF_PROFILE_H264_CONSTRAINED : 0;
break;
case FF_PROFILE_H264_HIGH_10:
case FF_PROFILE_H264_HIGH_422:
case FF_PROFILE_H264_HIGH_444_PREDICTIVE:
// constraint_set3_flag set to 1
profile |= (sps->constraint_set_flags & 1<<3) ? FF_PROFILE_H264_INTRA : 0;
break;
}
return profile;
}
/**
* decodes a slice header.
* This will also call MPV_common_init() and frame_start() as needed.
@ -1756,7 +1783,7 @@ static int decode_slice_header(H264Context *h, H264Context *h0){
}
h->sps = *h0->sps_buffers[h->pps.sps_id];
s->avctx->profile = h->sps.profile_idc;
s->avctx->profile = ff_h264_get_profile(&h->sps);
s->avctx->level = h->sps.level_idc;
s->avctx->refs = h->sps.ref_frame_count;

6
libavcodec/h264.h
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@ -209,6 +209,7 @@ typedef struct SPS{
int bit_depth_luma; ///< bit_depth_luma_minus8 + 8
int bit_depth_chroma; ///< bit_depth_chroma_minus8 + 8
int residual_color_transform_flag; ///< residual_colour_transform_flag
int constraint_set_flags; ///< constraint_set[0-3]_flag
}SPS;
/**
@ -611,6 +612,11 @@ int ff_h264_decode_sei(H264Context *h);
*/
int ff_h264_decode_seq_parameter_set(H264Context *h);
/**
* compute profile from sps
*/
int ff_h264_get_profile(SPS *sps);
/**
* Decode PPS
*/

2
libavcodec/h264_parser.c
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@ -187,7 +187,7 @@ static inline int parse_nal_units(AVCodecParserContext *s,
h->sps = *h->sps_buffers[h->pps.sps_id];
h->frame_num = get_bits(&h->s.gb, h->sps.log2_max_frame_num);
avctx->profile = h->sps.profile_idc;
avctx->profile = ff_h264_get_profile(&h->sps);
avctx->level = h->sps.level_idc;
if(h->sps.frame_mbs_only_flag){

11
libavcodec/h264_ps.c
View File

@ -267,16 +267,16 @@ static void decode_scaling_matrices(H264Context *h, SPS *sps, PPS *pps, int is_s
int ff_h264_decode_seq_parameter_set(H264Context *h){
MpegEncContext * const s = &h->s;
int profile_idc, level_idc;
int profile_idc, level_idc, constraint_set_flags = 0;
unsigned int sps_id;
int i;
SPS *sps;
profile_idc= get_bits(&s->gb, 8);
get_bits1(&s->gb); //constraint_set0_flag
get_bits1(&s->gb); //constraint_set1_flag
get_bits1(&s->gb); //constraint_set2_flag
get_bits1(&s->gb); //constraint_set3_flag
constraint_set_flags |= get_bits1(&s->gb) << 0; //constraint_set0_flag
constraint_set_flags |= get_bits1(&s->gb) << 1; //constraint_set1_flag
constraint_set_flags |= get_bits1(&s->gb) << 2; //constraint_set2_flag
constraint_set_flags |= get_bits1(&s->gb) << 3; //constraint_set3_flag
get_bits(&s->gb, 4); // reserved
level_idc= get_bits(&s->gb, 8);
sps_id= get_ue_golomb_31(&s->gb);
@ -291,6 +291,7 @@ int ff_h264_decode_seq_parameter_set(H264Context *h){
sps->time_offset_length = 24;
sps->profile_idc= profile_idc;
sps->constraint_set_flags = constraint_set_flags;
sps->level_idc= level_idc;
memset(sps->scaling_matrix4, 16, sizeof(sps->scaling_matrix4));